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Results 1 - 10 of 14
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10/22/2016 - Research projectsA project to deliver practices, methodologies, and strategies to the industry to improve ventilation effectiveness in underground metal/nonmetal (M/NM) operations to increase control of airborne contaminants in deep mines.
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4/29/2016 - Contracts and cooperative agreementsA capacity-building contract to research using booster fans in deep coal mines in the western U.S., where coal seams can have over 3,000 ft of overburden causing ventilation and ground control problems.
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3/1/2014 - Peer reviewed journal articlesA report detailing the results of two controlled recirculation tests over three days at a Wyoming trona mine, utilizing an inline booster fan to improve airflow to a remote and difficult-to-ventilate development section.
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10/1/2010 - Peer reviewed journal articlesThis paper presents the history of booster fan use in coal mines of the United States during the last 90 years. Changes in regulations, as well as advantages and disadvantages of booster fan use, are discussed. Research and petitions for booster fan use...
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2/1/2010 - Conference papersThis paper discusses the role of ventilation modeling in evaluating primary escapeway pressurization in a three-entry development system to improve emergency escape in a coal mine using belt air.
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2/1/2008 - Conference papersThis paper describes NIOSH research demonstrating that the ventilation of large-opening mines improves significantly by including ventilation requirements in the mine planning process and implementing some practical techniques during mining.
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6/1/2006 - Conference papersNIOSH research suggest that by incorporating ventilation planning into the mine planning process, using propeller fans, developing new stopping materials and construction methods, and using long pillars to eliminate crosscuts where possible, the ventila...
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6/1/2006 - Conference papersThe flow characteristics of both vane-axial and propeller fans were investigated and tested at four large-opening mines to assess the effects of fan location on recirculation and entrainment.
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5/1/2004 - Conference papersDescribes the results of a case study where NIOSH demonstrates that significant increases in total mine airflow can be achieved and the ventilation improved in a large-opening stone mine by replacing an axial-vane mine fan with two 12-ft diameter propel...
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2/1/2004 - Conference papersDescribes three alternative ventilation models for use in large opening underground mines with respect to their use in mines of various levels of development.
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Content source: National Institute for Occupational Safety and Health, Mining Program